Pay Corporation Tax Online 2026: Complete guide
Pay Corporation Tax online using the correct HMRC method, payment reference and processing time to prevent avoidable delays.
Paying Corporation Tax is not simply a matter of sending money to HMRC. A company must use the payment details for the correct accounting period, allow enough processing time and enter the right 17-character reference. A payment sent on time can still take longer to reach the company’s account if the reference is wrong or belongs to a previous period. The safest approach is to check the liability, deadline, method and reference before authorising the transaction.
Most companies can make tax payments online through an approved bank transfer, Direct Debit or card route. The suitable method depends on how close the deadline is, whether the company has used Direct Debit before and whether the payer is using a personal or corporate card. HMRC does not normally issue a Corporation Tax bill, so the company remains responsible for working out what it owes. Keeping the payment confirmation with the accounting records makes later checks much easier.
This article concentrates on the payment process rather than repeating the site’s detailed coverage of Corporation Tax due dates. It explains who pays, how to choose a payment method, where to find the correct reference and what to do after a late or misallocated payment. It also separates limited-company Corporation Tax from a self employed tax payment, because the two use different tax systems and references. The goal is a payment that reaches the right HMRC account for the right period without unnecessary delay.
What Is Corporation Tax?
Corporation Tax is charged on the taxable profits of companies and certain organisations, and the taxpayer must calculate, report and pay the liability rather than wait for an HMRC bill.
According to GOV.UK Corporation Tax guidance, taxable profits can include trading profits, investment income and chargeable gains made when assets are sold for more than their cost. A UK-resident company is generally within the charge on its UK and overseas profits, while a non-UK resident company with a UK branch or office is generally charged on profits from its UK activities. Allowable expenses, capital allowances, losses and other reliefs can change the final taxable amount. Accounting profit should therefore not be treated automatically as the figure on which tax is paid.
HMRC guidance confirms that a company does not receive a routine bill telling it how much Corporation Tax to pay. The company must keep adequate records, prepare its tax computation, pay or report that nothing is due, and file its Company Tax Return. Payment and filing are related obligations but have different deadlines. Paying the estimated liability does not replace the need to submit the return.
Who Has to Pay Corporation Tax?
Limited companies, overseas companies with a UK branch or office, and some clubs, co-operatives and unincorporated associations may have to pay Corporation Tax on taxable profits.
As per GOV.UK, the charge commonly applies to private limited companies and public limited companies, but it is not restricted to businesses incorporated in the UK. Foreign companies carrying on activities through a UK branch or office can also be liable on relevant UK profits. Certain clubs, co-operatives and other unincorporated associations may fall within Corporation Tax as well. Each organisation should check its legal form and tax status instead of assuming that incorporation is the only test.
A company that is not trading is usually dormant for Corporation Tax, but dormancy must be handled correctly. According to GOV.UK dormant-company guidance, a company that has stopped trading and has no other income can tell HMRC it is dormant. It may still have to file a return if HMRC has already issued a notice to deliver one for the period. Companies House accounts and confirmation-statement duties can also continue even when no Corporation Tax is payable.
How to Pay Corporation Tax
To pay Corporation Tax correctly, confirm the amount and deadline, obtain the 17-character reference for that accounting period, choose an HMRC-approved method and retain proof of payment.
Start by checking the company’s Corporation Tax computation and the period being paid. If the final accounts are not yet complete, use a reasonable calculation based on current records rather than waiting until the filing deadline, which is normally later than the payment deadline. The Corporation Tax calculator can provide an initial estimate, but the company’s tax computation should reflect its actual taxable profits, associated companies, reliefs and accounting period. Review the figure with the company’s accountant where the position is complex or uncertain.
Next, obtain the correct reference from the company’s HMRC online account or its notice to deliver a return. Open the official Corporation Tax payment service and select a method that can clear before the deadline. Enter the amount and reference carefully, then review the bank or card confirmation before submitting. Save the confirmation number, transaction date and amount with the records for that accounting period.
Do not copy bank details from an old article, email or payment template without checking the current official service. Bank instructions can change, and a saved payee may retain the reference used for the previous accounting period. The company’s notice or the GOV.UK payment pages should determine which HMRC account and reference to use. This reduces the risk of sending the correct amount to the wrong place.
Corporation Tax Payment Deadlines
A company with taxable profits of up to £1.5 million normally pays Corporation Tax nine months and one day after its accounting period ends, while companies above the relevant threshold may have to pay by instalments.
At the time of writing, GOV.UK states that companies with taxable profits up to £1.5 million normally pay nine months and one day after the end of the accounting period. The threshold can be affected by associated companies and shorter accounting periods, so it should not be applied in isolation. Companies with profits above the applicable limit may need quarterly instalment payments, with some instalments falling before the accounting period ends. Always check GOV.UK for current rates and payment deadlines.
The accounting period is the period covered by the Company Tax Return and cannot exceed 12 months. As per GOV.UK accounting-period guidance, it is normally aligned with the financial year but can differ when a company starts, stops or changes its year end. First accounts covering more than 12 months can create two Corporation Tax accounting periods and two payment deadlines. The company should check the dates in its HMRC business tax account rather than relying only on the Companies House year end.
The existing guide to when Corporation Tax is due explains deadline calculations and unusual accounting periods in more detail. For payment planning, the important point is to work backwards from the due date using the clearing time for the chosen method. If a deadline falls on a weekend or bank holiday, HMRC generally requires the payment to arrive on the previous working day, except where its guidance specifically treats Faster Payments differently. Leaving the transaction until the final day removes room to correct a rejected or misdirected payment.
Tax Payments Online Through HMRC
Corporation Tax can be paid online through HMRC-approved banking, Direct Debit and card routes, but the payer should begin from GOV.UK and check the processing time before authorising payment.
The official tax payment site offers several routes rather than a single universal checkout. A company can approve a payment through a compatible online bank account, make a Faster Payment, use CHAPS or Bacs, set up Direct Debit, or pay by an accepted card. The Government Gateway or business tax account is useful for viewing the company’s Corporation Tax position, accounting periods and payment reference. The separate payment route then handles the transaction itself.
HMRC states that approving a payment through online banking, using Faster Payments or CHAPS, and paying by an accepted card normally work on the same day or next day. Bacs normally takes three working days. A previously authorised Direct Debit normally takes three working days, while a first Direct Debit should be allowed five working days. These are processing expectations, so bank limits, security checks and cut-off times should still be considered.
The site’s HMRC online payment guide covers the wider process for different taxes. Corporation Tax requires extra attention because the 17-character reference changes for each accounting period. A saved bank payee can therefore be convenient but risky if the old reference remains attached. Check the reference every time, even when the HMRC account details have already been saved.
Corporation Tax Payment Methods
HMRC accepts Faster Payments, CHAPS, Bacs, Direct Debit, approved online-bank payments, eligible cards and limited branch payments, with different clearing times and conditions.
Faster Payments is often suitable when the deadline is close because HMRC says it usually arrives the same or next day, including weekends and bank holidays. CHAPS normally reaches HMRC on the same working day when the payer meets the bank’s processing cut-off, but the bank may charge a fee. Bacs is slower and usually needs three working days. Before transferring a large amount, check the bank’s daily transaction limit and whether additional approval is required.
Direct Debit can suit a company that wants a payment initiated through its HMRC online account. According to HMRC’s Direct Debit guidance, the first payment should be given five working days and later payments normally take three working days once authorisation exists. Direct Debit cannot be used for a payment above £20 million. A mandate unused for two years or more should be checked with the bank before relying on it.
Branch payment is much more restricted than electronic payment. HMRC states that cash or cheque can be paid at a bank or building-society branch only when the payer has an HMRC paying-in slip. Corporation Tax cannot be paid by post. For most businesses, an electronic method is clearer because it produces an immediate transaction record and does not depend on having a physical slip.
Can I Pay My Tax Bill With a Credit Card?
You can pay Corporation Tax with a corporate credit card subject to a non-refundable fee, but HMRC does not accept personal credit cards for this payment.
According to HMRC’s Corporation Tax card guidance, a corporate credit card or corporate debit card can be used online, but a non-refundable fee applies. A personal debit card is accepted without a fee. A personal credit card cannot be used. If the whole liability cannot be paid by card, HMRC directs the payer to use another payment method.
A card payment is treated as made on the date it is submitted, including weekends and bank holidays, under the current HMRC guidance. That does not remove the need to enter the correct 17-character reference or retain confirmation. The business should also consider the card provider’s limit, borrowing cost and internal approval policy before choosing credit. A fee-bearing corporate card may be convenient, but it is not automatically the cheapest way to settle the liability.
How to Find Your Corporation Tax Reference
The payment reference is a 17-character code for a specific accounting period, available on HMRC notices, reminders or the company’s online Corporation Tax statement.
The Corporation Tax payment reference is not the same as entering the company’s 10-digit UTR on its own. HMRC requires the full 17-character payment reference linked to the accounting period being paid. It appears on the notice to deliver the Company Tax Return, payment reminders and the company’s HMRC online account. In the online account, select the Corporation Tax statement, the accounting periods and then the relevant period.
The reference changes between accounting periods, which is one of the most common sources of allocation problems. According to HMRC’s bank-transfer guidance, a bank may preserve the old reference when an HMRC payee is saved, so it must be updated before the next payment. Do not attempt to construct a reference from memory when the official code is available. A wrong reference can delay allocation even when the amount and HMRC bank account are correct.
If the underlying 10-digit company UTR cannot be found, GOV.UK says it may appear on previous returns, notices and other HMRC correspondence. A limited company can also request its Corporation Tax UTR online, with HMRC sending it to the registered business address. This recovery route is for the UTR and should not be confused with locating the period-specific payment reference. Allow time for recovery instead of waiting until the payment deadline.
Late Corporation Tax Payments
HMRC normally charges daily interest from the day after Corporation Tax was due until it is paid, so a company that cannot pay should contact HMRC promptly.
HMRC guidance confirms that late payment interest applies automatically when Corporation Tax is paid late, underpaid or left unpaid. Interest runs from the day after the due date until the payment date and is calculated daily, although interest is not charged on the interest itself. The applicable rate can change, so avoid relying on an old percentage. Always check GOV.UK for current rates and interest rules.
Late payment and late filing are separate issues. A company can incur interest for paying late even if its return is filed on time, and it can face filing penalties even where no Corporation Tax is due. At the time of writing, the flat-rate late-filing penalties changed for returns with filing dates from 1 April 2026, so older articles may show outdated amounts. Check the current HMRC penalty notice and official guidance before quoting or paying a filing penalty.
If the company cannot pay in full, early contact with HMRC is safer than silence. The government states that support depends on the taxpayer’s circumstances and may include a Time to Pay arrangement based on affordability. HMRC may use debt recovery or enforcement options where a taxpayer does not engage or refuses to pay, but it normally attempts contact first. Provide realistic cash-flow information and do not promise instalments the company cannot maintain.
Corporation Tax and Self-Employed Tax Payments
A limited company pays Corporation Tax on company profits, while a sole trader normally pays Income Tax and National Insurance through Self Assessment.
A limited company is legally separate from its owner, so its Corporation Tax belongs to the company. A sole trader is not a separate company and normally reports business profit through Self Assessment. According to GOV.UK, a sole trader may need to pay Income Tax and National Insurance contributions rather than Corporation Tax. The payment references, deadlines and online services are therefore not interchangeable.
A director can have both company and personal tax obligations. The company may pay Corporation Tax, PAYE or VAT, while the director may separately owe Self Assessment tax on dividends, other income or gains. Use the correct HMRC payment route for each liability and do not send a personal Self Assessment payment with the company’s Corporation Tax reference. The self-employed tax calculator can help sole traders estimate a personal tax liability, but it should not be used as the company’s Corporation Tax computation.
How to Calculate Corporation Tax Before Paying
Calculate Corporation Tax from taxable profits after valid adjustments, expenses, allowances and reliefs, then apply the rate and marginal-relief rules relevant to the accounting period.
Begin with the company’s accounts and adjust the accounting profit for tax purposes. Some expenses shown in the accounts may not be deductible, while capital allowances, brought-forward losses or other reliefs may reduce taxable profits. Chargeable gains and investment income can also affect the computation. The calculation should reconcile clearly to the figures reported in the Company Tax Return.
At the time of writing, official rates for financial year 2026 to 2027 show a 19% small-profits rate and a 25% main rate, with marginal relief generally applying between £50,000 and £250,000. Those limits can be reduced for short accounting periods and divided among associated companies. A company should not simply multiply every profit figure by 19% or 25% without checking the rules. Always check GOV.UK for current rates.
Corporation Tax is self-assessed, so payment may be required before the final return is filed. If later work shows that the estimate was too low, pay the balance promptly to limit interest. If the company overpays, it may be able to request or claim repayment after HMRC has sufficient information. Keep the computation version that supported each payment so changes can be explained.
Common Corporation Tax Payment Mistakes
The most damaging payment mistakes are using an old reference, choosing a method too late, confusing payment and filing deadlines, and failing to confirm that HMRC received the money.
Using the previous period’s reference is an easy mistake when HMRC has been saved as a bank payee. The payment may leave the company’s bank account but appear against the wrong accounting period or take longer to allocate. Compare all 17 characters with the reference shown for the period in the HMRC online account. Do this before authorisation rather than trying to correct the allocation afterwards.
Another mistake is initiating a slow method too close to the deadline. A first Direct Debit needs more time than an existing mandate, and Bacs normally needs three working days. A weekend or bank holiday can also affect when HMRC must receive the payment. Choose the payment route from the time remaining, not simply from habit.
Some companies treat the Company Tax Return deadline as the payment deadline, even though the normal payment date comes earlier. Others pay an estimate but forget to file the return. Maintain separate calendar entries for accounts, payment and return filing, with an earlier internal review date. This makes responsibility clear where an accountant prepares the return but the company authorises payment.
Finally, do not assume that a bank confirmation proves HMRC has allocated the payment correctly. As per GOV.UK payment-check guidance, the company’s HMRC online account should update within a few days after receipt. Check the statement and investigate a missing or misallocated amount promptly. Keep the payment confirmation available when contacting HMRC.
Final Thoughts
A reliable Corporation Tax payment process combines an accurate liability, the correct deadline, a suitable payment method, the period-specific reference and a final receipt check.
The easiest way to pay Corporation Tax online is to prepare before opening the payment screen. Confirm the accounting period, liability and deadline, then copy the 17-character reference from a current HMRC source. Select a method with enough clearing time and review the details before releasing the funds. This short control process prevents many avoidable payment problems.
After paying, store the transaction evidence and check the company’s HMRC account within a few days. If the payment is missing, late or allocated to the wrong period, act promptly and provide the transaction details. If cash flow prevents full payment, contact HMRC early to discuss the position rather than ignoring the debt. Current GOV.UK guidance should always take priority where payment methods, rates or deadlines change.
All information in this guide is based on trusted sources. Readers should verify current procedures directly with the government website before making decisions, as rules may change after publication.
Written by
Daniel Reed
Daniel Reed writes about PAYE, payslips, tax codes, workplace deductions and take-home pay in the UK.
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