This April, the standard allowance for the under-65s is set to increase again, this time to £8,105. This is less of an increase than last year (a change only of £630) but it will still make a significant difference to those on lower incomes. Nick Clegg is pushing for the threshold to be raised quicker than that, but the Conservatives are resisting it for now – the main reason for this being that the lost tax would have to be paid for elsewhere. This could mean either increasing other taxes or making further cuts.

The personal allowance is affected by your tax code, which means you may not receive the standard tax-free amount. More information about tax codes in this blog post.

The Salary Calculator will be updated in early Spring with the tax thresholds and rates for April 2012.

This visualisation is rather US-centric, but much of the information displayed is valuable for those of us on this side of the Atlantic. It starts with individual dollars, then compounds them to thousands (shrinking the scale). Continuing on to millions, billions and finally trillions, it gives a clear indication of just how much money we’re talking about. Check out the diagram here: http://xkcd.com/980/huge/ (you will need to zoom in!).

However, I have been able to spend some time making minor alterations to the way The Salary Calculator is displayed in some browsers. The original site was built at a time when few computers had widescreen or high-resolution monitors, which is now not the case. When users with widescreen monitors viewed the old layout, bits of the site were displayed very far apart, making it difficult to use.

The new layout is fixed to a width that should be accommodated by almost all browsers, and should provide a better experience to those on widescreen monitors. I would really appreciate any feedback on how the new layout is working for you. At a later date, I’d love to improve the site design further, and to add those extra features you have all asked me for.

First came the bad news that the Consumer Price Index (CPI) had increased from 4% to 4.5% in April. The CPI is used to measure inflation in the UK and to compare it with the government’s target of 2%. A low level of inflation (like 2%) is a sign of a healthy economy, but higher rates usually mean that the costs of goods and services are increasing faster than workers’ wages, leading to a lower standard of living. For those of us already finding it hard to make ends meet, this is obviously bad news.

On the flip side, however, there was news that unemployment fell in the first quarter of this year. The decrease was only slight, to 7.7% from 7.8% the previous quarter, but it is a promising sign – as is the fact that the number of people in employment has increased to 29.24 million, just short of the pre-recession peak of 29.57 million.

What does all of this mean? Well unfortunately, these numbers are just a small part of the complex system that makes up the British economy and predicting what will happen next is astonishingly difficult – as no doubt you’ve noticed in the past few years. However, it seems that the economy is continuing on its long, slow recovery from the greatest recession in living memory. The recovery appears to be fragile – which is one of the reasons that the Bank of England has left its base rate at 0.5% for the 26th month in a row. You know what they say – slow and steady wins the race!

Bonuses are typically paid as a one-off extra on top of your usual salary. Your employer will work out what extra deductions (tax, National Insurance and Student Loan) will be required that tax year because of this extra payment, and will add these on top of your usual deductions for that month. Yes, this unfortunately means that you’ll pay a lot of tax, NI and Student Loan that month (boo!) – but some of your bonus will be left for you to enjoy!

For the purposes of displaying the information The Salary Calculator assumes that your salary is normally paid monthly, and shows you what a bonus month would look like compared to a normal month. Similar calculations will be done by your employer if you are paid weekly. To get started, click here to check out The Salary Calculator with bonus payments.

In comparison to last year, when rates for most of us were unchanged, there are a number of differences which will mean that your payslip will be different next month.

The standard personal allowance (the amount you can earn tax-free) is increasing by a thousand pounds to £7,475, but this is mitigated in some way for higher earners by the threshold for 40% tax being lowered to £35,000. Similarly, NI rates increased by one penny in the pound (to 12% and 2%) but the threshold for paying NI increased so lower earners may not be too badly affected.

To see how you’re affected, try out The Salary Calculator with your salary. The details of the figures used by The Salary Calculator are available on the About page.

Useful links:

• HMRC Income Tax info sheet
• HMRC National Insurance info sheet

Tax codes exist because in some circumstances HMRC may adjust your personal allowance, often because of benefits like a company car or private healthcare. They do this by providing your employer with a tax code which indicates what your personal allowance should be.

The usual effect of such an adjustment would be to lower your personal allowance, meaning that you pay tax on more of your income. If you receive benefits such as private healthcare or a company car through your employer, you pay more tax on your salary so that the value of these benefits is also taxed.

Tax codes usually indicate the personal allowance by including a number which should be multiplied by 10 and have £5 added to it to make the personal allowance – e.g. the standard code 647L indicates a personal allowance of £6,475.

• L, P, Y and T codes indicate the personal allowance to be assigned as described above
• K codes indicate the amount by which the taxable income should be increased, if you owe tax on other earnings which should have been taxed
• A BR code indicates you pay 20% basic rate tax on all income
• A D0 code indicates you pay 40% tax on all income
• An NT code indicates you pay no tax

In most cases your tax code will stay the same if you change jobs, so now you can use The Salary Calculator to get a more accurate indication of what a pay rise or a new job would mean to you each month!

The problem occurs because although the Student Loans Company (SLC) has informed your employer through HMRC that you should have student loan deducted from your payslip each month, the SLC doesn’t know how much is being repaid until the end of the tax year when your employer files its tax return. As you’ll see on the About page of The Salary Calculator, student loans are repaid at a fixed rate of 9% of anything you earn over £15,000 – no matter how large (or small) the balance of the loan. If you are close to repaying the total of your loan, deductions may continue for some time until the SLC realise that you have overpaid – and even then, they have to communicate to HMRC who then pass the “stop” message on to your employer.

There are things you can do to help prevent overpayment, however. The Student Loan Repayment Portal (which appears currently to be unavailable) will show the last known balance of your account, and allows you to enter information from your payslips to estimate how much is outstanding. If you are close to repaying the full amount, you can contact the SLC directly and pay off the remaining balance by debit card over the phone. When you do this you will need to make sure that the stop notice makes its way from the SLC through HMRC to your employer – if not, you will find the deductions continue to be taken even though you have repaid the loan. You may be able to get the SLC to fax confirmation of the stop directly to your employer, making sure it arrives in time for your next payslip – if you speak to the SLC about repaying your loan, you can ask them about this and discuss it with your employer.

Alternatively, you can arrange for your remaining balance to be taken by Direct Debit rather than by PAYE deduction – meaning that when the balance has been repaid in full, the debits stop automatically. Again, the SLC need to send a “stop” note to HMRC and your employer, but this happens before the amount is repaid and therefore if something goes wrong you are less likely to be trying to get a refund.

If you are repaying your student loan and you think this may apply to you, check out the Repayment Portal I linked to above and see how much is still outstanding on your loan. I repaid my loan earlier this year and I can tell you it is a good feeling!

Although a lot of people wait until the January sales before making a large purchase, in some cases you might find that it’s worthwhile to buy before the end of the year so that you only pay the lower 17.5% VAT. However, bear in mind that the amount of VAT increase is only small (a little over 2%) compared to the kind of discounts often offered in January sales.

For large purchases, such as a new car, the VAT increase could lead to a significant increase in price so it is worth checking what the VAT increase means for you. Fortunately, over at our sister site The VAT Calculator we have created a simple tool that shows you how much more something will cost if you buy it after the VAT increase. Just enter the current cost (including VAT) and see what the cost changes to with 20% VAT – try out the 20% VAT comparison calculator.

You can learn more about VAT by reading the information here.

My favourite part is where he gives several reasons why your boss is overpaid – something we’ve all wondered in the past, and it’s both reassuring and disconcerting to learn that there might be a legitimate reason for it. More disconcerting is the chapter explaining that racism can be rational – and demonstrating that while rationality may be more prevalent than we expect, it is not always to be applauded.

If you’d like to get some insight into a few of life’s little mysteries, click on the link to the right to buy the book. You’ll be helping to support this website and you might just learn something!