Tax when self employed and employed

[unicornpoopoop]

Getting really confused trying to work out how much tax will be due. Any help would be much appreciated.

For the current tax year:

Spent 5 months in self employed work. Put aside 20% of this ready for tax return.

Then spent 3 months at an agency. Paid tax and NI on this.

Following that I am now sub contracted. So still self employed but they collect 20% for tax for me and I get receipts for this.

When it comes to doing my tax return, will the tax I've already paid be taken into account?

Income in total for the year after expenses will be about 18000

It sounds as if the agency work was done as an employee through an umbrella company if she had to pay the employers NI as well as the employees NI, in which case the fee paid to the umbrella company is not included in wages and nor is it a taxable expense. It is not an expense of being self employed as she would be an employee of the umbrella company for that time.

Payments on account aren’t that unfair-you still end up paying later than you do if you’re in PAYE (For example, the first POAs for the 18/19 tax year was due by 31/01/19 and the second will be due by 31/07/19.). But you’re in the CIS so you’re paying tax as you go along anyway.