Mortgage Payslip Checklist UK 2026: What Lenders Actually Need

When you apply for a UK mortgage, the lender's underwriter will look at your last three payslips alongside your bank statements, your contract and (usually) your last two P60s. The payslip is the single most important document for affordability - and most applicants don't know what underwriters are actually checking.

This guide walks you through every figure that matters, in the order an underwriter checks them, so your application doesn't stall on a fixable payslip issue.

What lenders ask for

For a residential mortgage in 2026, most UK high-street lenders want:

• 3 months' worth of payslips (or 3 if monthly, 13 if weekly).
• 2 years' P60s (showing annual gross income).
• 3 months' bank statements showing income arriving.
• Employment contract if you're new to the role (under 6 months) or a higher-rate earner.
• Latest accounts (2-3 years) if you're self-employed.
• CIS payment statements + Self Assessment SA302 if you're a CIS subcontractor.

The payslips have to match the bank statements (gross showing on payslip = net arriving in account, after deductions), and the YTD figure on the latest payslip has to make sense relative to your stated annual income.

What underwriters look for, in order

1. Consistency of gross monthly pay

The first thing the underwriter does is look at your last three months of gross pay. They want it to be stable, with the only variations being:

• Expected bonus/commission cycles (quarterly, annual).
• Documented overtime patterns (if your job involves regular overtime).
• A clear single-period anomaly that you can explain.

What raises flags:

• Gross varying by more than 10% month-to-month with no obvious reason.
• A sudden drop in the most recent month (suggests reducing income; lender will want to know why).
• A sudden spike in the most recent month (suggests a one-off bonus; lender may discount it from affordability).

2. Tax code

Your tax code on each payslip should be:

• Cumulative (no W1/M1/X suffix) for at least the last 2-3 months.
• Matching your situation (1257L for most people; S1257L if Scottish; other codes only with explanation).
• Stable (it should not have changed materially in the period).

Why it matters: a non-cumulative code suggests you've recently changed jobs (employment instability - bad for mortgage); a BR code suggests you have a second job the lender doesn't know about; a K code suggests substantial untaxed benefits or prior-year underpayment - both worth a conversation.

3. YTD gross income figure

Every UK payslip carries a year-to-date (YTD) gross figure. Lenders annualise it:

• Annual gross estimate = YTD gross × (12 ÷ months elapsed in the tax year).

So your YTD figure on a December payslip ÷ 9 (months April-December) × 12 = your annualised income for affordability.

What raises flags:

• The annualised YTD doesn't match your stated annual income.
• Your last few months' pay × 12 doesn't match your stated annual income (suggests a recent step-down).
• The YTD includes a one-off bonus that won't recur - affordability may be over-stated.

4. Deductions and salary sacrifice

Lenders treat salary-sacrificed amounts differently. Common items:

• Pension salary sacrifice - most lenders use pre-sacrifice gross for affordability. A few use post-sacrifice. Brokers know which.
• Cycle-to-work / EV scheme sacrifice - usually treated as a deduction (post-sacrifice gross used).
• Childcare vouchers / Tax-Free Childcare - Tax-Free Childcare doesn't appear on payslip (it's separate); legacy Childcare Vouchers do and are usually deducted.

If you're at the edge of an affordability test, salary sacrifice can be the difference between approval and refusal. A broker can usually steer you to a lender whose affordability calculation favours your situation.

5. Bonus and commission treatment

Most lenders accept a percentage of regular bonus/commission income towards affordability:

• 50% is common for unpredictable bonuses.
• 75% is common for documented, contractual bonuses with 2-3 years of history.
• 100% is rare and usually only for fully contractual non-discretionary bonuses.

Underwriters look at:

• Your last 2-3 P60s for bonus history.
• Your last 12 months of bonus payments visible on payslips.
• Your contract for bonus terms.

If you've had a great bonus year that pulls your annualised income above your steady state, the lender may discount it.

6. Employer name and address

Lenders cross-reference your employer name with Companies House. Common stalls:

• Employer trading name on payslip ≠ legal entity name on Companies House (very common with subsidiaries - e.g. payslip says "Marks & Spencer" but the legal entity is "Marks and Spencer Group plc").
• Recently rebranded employer (lender's database hasn't caught up).
• Foreign parent company (lender wants to verify the UK PAYE-paying entity).

If your employer's payslip name is materially different from the Companies House name, mention it to your broker upfront.

Common payslip issues that stall mortgages

Issue	Underwriter concern	Fix
Tax code BR on apparent only job	Are they hiding a second income?	Get HMRC to correct first; or document second job
Tax code W1/M1/X	Recently changed jobs (instability)	Wait until cumulative code arrives, or explain in cover letter
Salary sacrifice not on payslip	Inconsistent income reporting	Get HR to issue a written statement of pre-sacrifice gross
YTD figure doesn't match P60	Possible payroll error; possible bonus that won't recur	Get HR to issue a YTD reconciliation in writing
Bonus shown but no bonus history on past P60s	Income may not be sustainable	Provide bonus scheme document; let lender discount it
Employer name doesn't match Companies House	Verification fail	Provide your contract; broker can pre-empt with the lender

What to do BEFORE you apply

1. Get your last 3 payslips in a single digital folder. PDFs from your payroll portal are best; photos work.
2. Run them through the PayslipIQ checker - we flag tax-code, NI and pension issues that lenders care about.
3. Get your last 2 years' P60s from HR or your old employers' portals.
4. Print your bank statements for the same period.
5. Check your credit file at Experian / Equifax / TransUnion (free). Mortgage rejections often come from credit-file issues, not payslip issues.
6. Talk to a whole-of-market mortgage broker before applying. They know which lenders are best for your specific situation (salary sacrifice, bonuses, recent job change).

When a broker is worth the fee

Most mortgage brokers charge £0 (commission from lender) to £999 (fixed fee) per case. They earn it for you when:

• Your situation is non-standard (self-employed, recent job change, bonus-heavy).
• You're at the edge of an affordability test.
• You've been refused before.
• You want a specialist product (BTL, foreign income, large-deposit).

If your situation is straightforward (PAYE employee, 2+ years in role, deposit ≥10%, no credit issues), a broker is usually still worth it for the lender-matching, but the value differential is smaller.

Disclaimer

PayslipIQ provides automated educational guidance based on the figures you supply. It is not regulated mortgage advice. Mortgage lending is regulated by the Financial Conduct Authority; all advice on which mortgage product to choose should come from an FCA-regulated mortgage adviser or broker. This guide explains what lenders look for; the lender's actual decision rests on its own affordability and risk assessment.