Making Tax Digital for Income Tax

MTD for Income Tax Explainer Guide

Understand what is reported quarterly, what belongs in your Final Declaration and how your Self Assessment boxes map to MTD.

Explore the guide

Part 1

Where does each type of income go?

Quarterly updates compared with your year-end Final Declaration for the 2026-27 tax year.

Under Making Tax Digital, only your self-employment and property businesses are reported in quarterly updates. Every other kind of income, including pensions, interest, dividends and employment, is brought together once a year in your Final Declaration. This table shows which is which.

How do I report State and other pension payments in quarterly submissions?

You don't. Pensions aren't quarterly income. They are entered in your year-end Final Declaration.

How do I report interest and share dividend income in quarterly submissions?

You don't. Savings interest and dividends aren't quarterly income either. They are also entered in the Final Declaration.

When each income and expense type is reported under Making Tax Digital for Income Tax
Income or expense type Quarterly update every 3 months Final Declaration once at year-end
Business income reported quarterly
Self-employment income and expenses1
UK property income and expenses1
Foreign property income and expenses1
All other income entered in the Final Declaration only
Employment or PAYE pay and benefits
UK State Pension
Other pensions and retirement annuities
Savings and investment interest
UK dividends
Foreign income, including interest, dividends and pensions from abroad
Capital gains
Other or miscellaneous income
Reliefs, Gift Aid and pension contributions
Marriage Allowance

3 business sources reported quarterly 10 other income types entered only in the Final Declaration

1. Business income is reported twice, differently. Your quarterly updates carry the running income and day-to-day expenses. Capital allowances, private-use adjustments and balancing charges are added once a year before the Final Declaration. The Final Declaration then brings the whole year together.

What the Final Declaration is. Once a year, after your final quarterly update, everything above is brought together in AbraTax to work out the tax you owe. This is the step that replaces your old Self Assessment tax return.

Continue to the field-by-field mapping

Part 2

Field-by-field mapping

Select your income type to see how each Self Assessment box maps to its MTD equivalent.

Self-employment (formerly SA103F)

Income

MTD Income Tax
Turnover / sales income
Self Assessment SA103F Box 15 - Turnover

Your turnover - the takings, fees, sales or money earned by your business

MTD Income Tax
Other business income
Self Assessment SA103F Box 16 - Other business income

Any other business income not in box 15, including COVID support payments (CJRS)

MTD Income Tax
Tax taken off trading income
Self Assessment SA103F Box 82 - Tax taken off trading income

Other tax taken off trading income

Expenses

MTD Income Tax
Consolidated expenses

Use if not itemising individual lines

Self Assessment SA103F Box 31 - Total expenses

Total expenses - use if you don't want to itemise

MTD Income Tax
Cost of goods
Self Assessment SA103F Box 17 - Cost of goods

Cost of goods bought for resale or goods used

MTD Income Tax
Payments to subcontractors
Self Assessment SA103F Box 18 - Subcontractor payments

Construction industry - payments to subcontractors

MTD Income Tax
Wages and staff costs
Self Assessment SA103F Box 19 - Wages and staff costs

Wages, salaries and other staff costs

MTD Income Tax
Car, van, travel expenses
Self Assessment SA103F Box 20 - Car, van and travel

Car, van and travel expenses

MTD Income Tax
Premises running costs
Self Assessment SA103F Box 21 - Premises costs

Rent, rates, power and insurance costs

MTD Income Tax
Repairs and maintenance
Self Assessment SA103F Box 22 - Repairs and maintenance

Repairs and maintenance of property and equipment

MTD Income Tax
Office, stationery and admin
Self Assessment SA103F Box 23 - Office costs

Phone, fax, stationery and other office costs

MTD Income Tax
Business entertainment
Self Assessment SA103F Box 24 - Advertising and entertainment

Advertising and business entertainment costs

MTD Income Tax
Advertising and marketing
Self Assessment New in MTD

No Self Assessment equivalent

MTD Income Tax
Interest on bank / other loans
Self Assessment SA103F Box 25 - Loan interest

Interest on bank and other loans

MTD Income Tax
Finance charges
Self Assessment SA103F Box 26 - Finance charges

Bank, credit card and other financial charges

MTD Income Tax
Bad debts written off
Self Assessment SA103F Box 27 - Irrecoverable debts

Irrecoverable debts written off

MTD Income Tax
Professional fees
Self Assessment SA103F Box 28 - Professional fees

Accountancy, legal and other professional fees

MTD Income Tax
Depreciation
Self Assessment SA103F Box 29 - Depreciation

Depreciation and loss or profit on sale of assets

MTD Income Tax
Other business expenses
Self Assessment SA103F Box 30 - Other expenses

Other business expense

Disallowable Expenses

MTD Income Tax
Disallowable goods / materials
Self Assessment SA103F Box 32

Non-allowable portion of goods or materials (e.g. private use)

MTD Income Tax
Disallowable subcontractor costs
Self Assessment SA103F Box 33

Subcontractor costs not allowable for tax

MTD Income Tax
Disallowable staff costs
Self Assessment SA103F Box 34

Staff costs not wholly and exclusively for business use

MTD Income Tax
Disallowable travel / vehicle
Self Assessment SA103F Box 35

Private or non-business portion of travel and vehicle costs

MTD Income Tax
Disallowable premises costs
Self Assessment SA103F Box 36

Private or non-business use element of premises costs

MTD Income Tax
Disallowable repairs
Self Assessment SA103F Box 37

Repairs relating to private use or capital improvements

MTD Income Tax
Disallowable admin costs
Self Assessment SA103F Box 38

Office or admin costs not wholly for business use

MTD Income Tax
Disallowable advertising
Self Assessment New in MTD

No Self Assessment equivalent

MTD Income Tax
Disallowable entertainment
Self Assessment SA103F Box 39

Client entertainment - normally fully disallowed

MTD Income Tax
Disallowable bank / loan interest
Self Assessment SA103F Box 40

Interest relating to private or non-business borrowing

MTD Income Tax
Disallowable finance charges
Self Assessment SA103F Box 41

Bank or finance charges not incurred wholly for business use

MTD Income Tax
Disallowable bad debts
Self Assessment SA103F Box 42

Bad debts that do not meet HMRC conditions for relief

MTD Income Tax
Disallowable professional fees
Self Assessment SA103F Box 43

Professional fees relating to private or capital matters

MTD Income Tax
Disallowable depreciation
Self Assessment SA103F Box 44

Depreciation is not allowable - capital allowances used instead

MTD Income Tax
Disallowable other expenses
Self Assessment SA103F Box 45

Any other expenses not allowable for tax

UK Property (formerly SA105)

Income

MTD Income Tax
Total rental income for the period
Self Assessment New in MTD

No Self Assessment equivalent

MTD Income Tax
Rent-a-Room income
Self Assessment New in MTD

No Self Assessment equivalent

MTD Income Tax
Other rental income
Self Assessment New in MTD

No Self Assessment equivalent

MTD Income Tax
Premiums received for granting a lease
Self Assessment SA105 - Premiums for grant of lease

Premiums for the grant of a lease - from box E on the working sheet

MTD Income Tax
Reverse premiums paid
Self Assessment SA105 - Reverse premiums and inducements

Reverse premiums and inducements

MTD Income Tax
Tax deducted at source
Self Assessment SA105 - Tax taken off income

Tax taken off any income in box 20

Expenses

MTD Income Tax
Consolidated expenses
Self Assessment SA105 - Other allowable property expenses

Other allowable property expenses

MTD Income Tax
Residential finance costs
Self Assessment SA105 - Residential property finance costs

Residential property finance costs

MTD Income Tax
Residential financial costs carried forward
Self Assessment SA105 - Unused residential finance costs b/fwd

Unused residential property finance costs brought forward

MTD Income Tax
Repairs and maintenance
Self Assessment SA105 - Property repairs and maintenance

Property repairs and maintenance

MTD Income Tax
Premises running costs
Self Assessment SA105 - Rent, rates, insurance and ground rents

Rent, rates, insurance and ground rents

MTD Income Tax
Cost of services
Self Assessment SA105 - Costs of services, including wages

Costs of services provided, including wages

MTD Income Tax
Professional fees
Self Assessment SA105 - Legal, management and professional fees

Legal, management and other professional fees

MTD Income Tax
Travel costs
Self Assessment New in MTD

No Self Assessment equivalent

MTD Income Tax
Other allowable property expenses
Self Assessment New in MTD

No Self Assessment equivalent

MTD Income Tax
Financial cost (non-residential)
Self Assessment SA105 - Non-residential property finance costs

Non-residential property finance costs

MTD Income Tax
Rent-a-room / amounts claimed
Self Assessment New in MTD

No Self Assessment equivalent

Foreign Property (formerly SA106)

Income

MTD Income Tax
Rent income / rent amount
Self Assessment New in MTD

No Self Assessment equivalent

MTD Income Tax
Foreign tax credit relief
Self Assessment SA106 - Foreign Tax Credit Relief

To claim Foreign Tax Credit Relief put X in the box

MTD Income Tax
Premiums of lease grant
Self Assessment SA106 - Premiums for grant of lease

Premiums paid for the grant of a lease

MTD Income Tax
Foreign tax paid or deducted
Self Assessment SA106 - Foreign tax taken off or paid

Foreign tax taken off or paid

MTD Income Tax
Special withholding / UK tax paid
Self Assessment SA106 - UK tax taken off

UK tax taken off

Expenses

MTD Income Tax
Consolidated expenses
Self Assessment SA106 - Allowable property expenses

Allowable property expenses

MTD Income Tax
Residential financial cost
Self Assessment SA106 - Residential property finance costs

Residential property finance costs

MTD Income Tax
Brought forward residential financial cost
Self Assessment SA106 - Unused residential finance costs b/fwd

Unused residential property finance costs brought forward

MTD Income Tax
Premises running costs
Self Assessment New in MTD

No Self Assessment equivalent

MTD Income Tax
Repairs and maintenance
Self Assessment New in MTD

No Self Assessment equivalent

MTD Income Tax
Financial costs
Self Assessment New in MTD

No Self Assessment equivalent

MTD Income Tax
Professional fees
Self Assessment New in MTD

No Self Assessment equivalent

MTD Income Tax
Travel costs
Self Assessment New in MTD

No Self Assessment equivalent

MTD Income Tax
Cost of services
Self Assessment New in MTD

No Self Assessment equivalent

MTD Income Tax
Other
Self Assessment New in MTD

No Self Assessment equivalent