Key Accounting Dates July 2026

July is one of the busiest months in the UK tax calendar. There is a heavy cluster of employer reporting deadlines around the 6th, the usual PAYE and CIS payment dates in the middle of the month, and the all-important Self Assessment second payment on account right at the end. Whether you run a limited company, employ staff, work with subcontractors, let property or file your own Self Assessment return, there is a strong chance that at least one of these dates applies to you.

Below is a quick look at some of the key dates in July 2026, what each deadline actually means, who it affects and what you need to do. One quick point to keep in mind throughout: a tax deadline that falls in July almost always relates to an earlier period. The deadline date is when payment or filing is due, while the period referenced is the one being reported on.

Early July

1 July: Corporation Tax payment for 30 September 2025 year ends

If your company has an accounting period ending on 30 September 2025, your Corporation Tax payment is due today. Corporation Tax for companies that are not large is payable nine months and one day after the end of the accounting period, which is why a 30 September year end falls due on 1 July.

The current rates are a main rate of 25% on profits over 250,000 pounds, a small profits rate of 19% on profits up to 50,000 pounds, and marginal relief which tapers the effective rate between those two thresholds. The thresholds are divided where you have associated companies, so a group of companies will hit the higher rate sooner.

You can pay online through the GOV.UK Corporation Tax payment service using Faster Payments, Bacs or a debit card.

Tip: The payment deadline always falls before your filing deadline, so do not wait until the return is finalised to work out what you owe. If cash flow is tight, knowing the figure early gives you time to plan. HMRC also pays a small amount of credit interest if you pay early.

4 July: Employment-related securities, making good unrecovered PAYE on notional payments

This is a niche but expensive trap for employers who reward staff with shares or securities. Where an employee has received a notional payment through employment-related securities, and the PAYE due on it has not been recovered from the employee, the employee must reimburse the employer by today.

If the amount is not made good within 90 days of the end of the tax year, an additional Income Tax charge arises on the employee under section 222 ITEPA 2003, effectively taxing them again on the unrecovered PAYE. Acting before the deadline avoids that second charge entirely.

Tip: If share-based pay is part of your reward package, check now whether any PAYE remains unrecovered from 2025-26. It is easy to overlook and the consequences fall on the employee.

5 July: PAYE Settlement Agreement for 2025-26

A PAYE Settlement Agreement, or PSA, lets you settle the tax on certain expenses and benefits on behalf of your employees in one annual payment, rather than reporting them individually on P11Ds or through payroll. It is typically used for minor, irregular or impractical-to-payroll items such as staff entertainment, small gifts or relocation costs above the exempt limit.

To use a PSA for the 2025-26 tax year, you need the agreement in place with HMRC by today. Under the agreement you pay the tax and Class 1B National Insurance due on the grossed-up value of the benefits. Full detail is on the GOV.UK PSA guidance.

Tip: A PSA is grossed up, meaning you pay the tax the employee would have paid as well as the National Insurance, so it can be more expensive than payrolling. It is worth modelling the cost before committing.

5 July: Non-resident landlord scheme annual return

Under the non-resident landlord scheme, letting agents (or tenants paying rent directly where there is no agent) who pay rent to a landlord based overseas may need to deduct basic rate tax before passing on the rent. By today they must submit their annual return to HMRC and provide certificate NRL6 to the landlord.

The NRL6 certificate shows the tax deducted during the year, which the landlord then uses to claim credit against their own UK tax liability. Where a landlord has been approved to receive rent gross, no tax is deducted but the annual return is still required.

6 July: Employer reporting day

The 6th is comfortably the most significant date this month for employers. A whole run of annual reports for the 2025-26 tax year all fall due on this single day. If you provide any benefits in kind or operate share arrangements, this is the date to have circled.

P11D and P11D(b)

Form P11D reports the expenses and benefits provided to each employee and director during 2025-26, such as company cars, private medical insurance and beneficial loans. Form P11D(b) is the employer declaration that reports your total Class 1A National Insurance liability on those benefits.

Both forms must now be filed online, either through HMRC’s PAYE Online service or via payroll software. If you registered to payroll your benefits for 2025-26 you will not need a P11D for those items, but you will still usually need a P11D(b) to account for the Class 1A National Insurance. See the GOV.UK A to Z of expenses and benefits for how to value specific items.

Tip: A common mistake is forgetting the P11D(b) when benefits have been payrolled. The Class 1A liability still needs declaring, so do not assume payrolling removes the 6 July obligation entirely.

Making good non-payrolled benefits

Where an employee is required to reimburse the cost of a non-payrolled benefit provided in 2025-26, that amount must be made good by today to reduce the taxable value of the benefit. Making good after this date generally does not reduce the reportable figure, so the timing matters.

Employment-related securities annual return

If you operate any employment-related securities arrangements, whether tax-advantaged schemes such as EMI, SAYE, SIP and CSOP, or non-tax-advantaged arrangements, your 2025-26 ERS annual return is due today. Importantly, a nil return is still required if you have a registered scheme but had nothing to report during the year. Missing it triggers automatic penalties.

Employee share scheme registration

Any new share scheme or arrangement established during 2025-26 must be registered with HMRC by today. Registration is a separate step from filing the annual return, and for tax-advantaged schemes such as EMI it is essential for the tax reliefs to apply. Late registration can put those reliefs at risk.

Termination payments and benefits report

If you provided termination payments and benefits during 2025-26 where the total package exceeded the relevant reporting threshold, the report on those payments is due today. This covers benefits provided as part of the settlement, not just cash.

Director loans, single loan election

A close company can elect under section 187 ITEPA 2003 for all beneficial loans made to a director to be treated as a single loan when calculating the 2025-26 benefit in kind. The deadline for making the election is today.

The election can simplify the calculation where a director has several loan accounts, though whether it produces a better or worse result depends on the pattern of the balances over the year. It is worth checking both ways before deciding.