MTD If You Have a Second Income: Who Has to Report

Many people earn income from more than one source — a day job plus freelance work, a salary plus rental income, or a full-time role plus an online business. If your self-employment or property income crosses the MTD threshold, you need to comply — regardless of your other income.

How the Threshold Works with Multiple Incomes

The £50,000 MTD threshold applies to your gross self-employment and property income only. Employment income (PAYE salary) does not count towards the threshold.

However, if you have both self-employment and property income, they are combined:

| Income source | Amount | Counts towards MTD threshold? | |--------------|--------|------------------------------| | PAYE salary | £45,000 | No | | Freelance income | £35,000 | Yes | | Rental income | £18,000 | Yes | | Total for MTD | £53,000 | Above threshold |

In this example, even though the freelance income alone is below £50,000, combining it with rental income pushes the total above the threshold.

What You Report Through MTD

You only report self-employment and property income through MTD. Your PAYE employment income continues to be handled through your employer and your tax code. MTD does not change how your salary is taxed.

Your quarterly updates cover:

• Self-employment income and expenses
• Property income and expenses

Your final declaration brings everything together, including your PAYE income, to calculate your total tax liability.

The Trading Allowance

If your second income from self-employment is under £1,000 per year, you can use the trading allowance and do not need to report it. This means very small side incomes (occasional tutoring, selling crafts) are usually exempt.

Above £1,000, you must register as self-employed and your income counts towards the MTD threshold.

Practical Considerations

Separate your business finances. Having a dedicated bank account for your side income makes MTD record keeping much cleaner.

Track time carefully. If you use the same equipment (laptop, phone) for your day job and your side business, you can only claim the business-use proportion.

Budget for extra tax. Your side income is taxed at your marginal rate. If your PAYE salary already uses up your personal allowance and basic rate band, your side income may be taxed at 40%.

Accounted helps you see your total tax position, including PAYE income, so you can budget accurately.

Stop dreading your Self Assessment. Accounted tracks everything throughout the year so January is just a click, not a crisis. Try it free.