Every January and July, I hear the same thing:

"Why am I paying tax upfront? This isn’t fair."

And I get it. A big tax bill landing twice a year doesn’t feel great.

But let’s step back and look at it properly.

The Employed vs The Self-Employed

If you're employed, your tax is taken before you even see your wages. PAYE handles it automatically. You get paid, HMRC gets paid — everyone’s square.

But if you’re a sole trader or in a partnership, it works differently.

You might start trading in May or June. You earn income all year. Let’s say by the following April you’ve made £50,000 profit. That money has been sitting in your account for months.

When do you pay the tax on it?
The following January.

In some cases, HMRC hasn’t seen a penny for 10–14 months.

So from their point of view, they’re always playing catch-up.

So What Are Payments on Account?

Payments on account are HMRC’s way of evening things up.

Yes — technically, you are paying part of next year’s tax in advance in January and July.

But you’ve already benefited from holding onto last year’s tax for months before paying it.

That’s the bit many business owners miss.

It’s not a punishment. It’s a balancing act.

Making Tax Digital & Quarterly Reporting

With Making Tax Digital rolling out, HMRC clearly wants tax collected more regularly — potentially quarterly, and maybe one day monthly.

Why?

Because the current system allows long gaps between earning income and paying tax on it.

From HMRC’s perspective, bringing self-employed businesses closer to the PAYE model makes sense.

Will the systems cope?
Will it run smoothly?
That’s another conversation.

But the direction of travel is clear.

The Reality From the Bunker

Is it frustrating writing a large cheque in January and July? Of course.

Is it unfair? Not really.

You’ve had the cash. 

You’ve had the benefit of that money sitting in your account. Payments on account simply bring things back into line.

From where I’m sitting, HMRC isn’t evening the score — they’re just trying to keep it balanced.

And as always, the key is planning.

If you understand it, prepare for it, and budget for it, it stops being a shock — and becomes part of running a business properly.