I left Basle and Switzerland in November last year and this March I received 2 tax returns together for 2013 and 2014. I worked at Novartis in Basle through SDE services effectively a payroll company.

As I went through the 120K barrier there was extra tax to pay and as I have to pay the extra tax are the tax authorities relatively flexible in extending the deadline.

As a UK citizen the tax authorities in the UK generally allow you to pay back what you can afford each month with of course interest until the liability is fulfilled.

So my question is whether I can come to an agreement with the Basle tax office as I can't afford to pay back the whole liability in one go.

Regards

Selina

Usually they are OK to agree with paying by instalments; make them a reasonable offer

This is information on applying for installment payments of taxes to Ct. Basel-Stadt. The application is either no-charge or costs CHF 40 depending on the circumstances:

http://www.steuerverwaltung.bs.ch/st...enzahlung.html

then click on "Web-Formular" and then on Zahlungsfrist erstrecken / Ratenzahlung beantragen

Depends on circumstances- if you earn a similar salary in the UK, they are unlikely to agree to terms.

Thank you this is really useful information

How come you had to pay an unaffordable extra amount of tax than the withholding tax? Did your employer get the figures wrong or you have lots of UK earnings to declare?

Depending on where you live, you may have an extra tax liability if you earn over 120k & do a return, especially if you live in a different canton to the one you work in.

I suspect the OP did not report the full amount of deductions as 15k is quite normal, possibly higher.

Withholding tax is based upon the canton in which you live already, unless you move mid year. Around Basel I don't think we have the gemeinde differences like one might in say Kanton Zurich.
I've heard of people in a similar situation to the OP being asked for more taxes due to some kind of irregularity in the calculations by the employer.