I am going to use these spreadsheets in the following
Select "Operating Budgetary Balance", 2013, "EUR Millions". The situation regarding the Rebate is extremely confusing, most sites suggesting it is after the Budget calculations. I think that these "official" figures are net of the Rebate. Nonetheless you will see a sharp difference between these figures for 2013 showing the UK Net Contribution at €8.6B vs
Wahaay's figure above of £11.3B (c. €13B). I think the Bloomberg exhibit for 2015 is after the rebate.
Now for a more interesting exhibit. Change selection from "EUR Millions" to "% GNI". You will notice that nobody, icluding the UK, pays more than 0.5% of their national income. It is very hard to quantify the benefits of being in a Single Market of 500M people but most if not all economsts would put it a good bit higher than 0.5%. The other fascintaing thing about this chart is that the "above the line" percentages are much higher i.e. the recipient countries get really meaningful injections, as we in Ireland know from past happy experience. Of course these subsidies of the "developing" countries are not entirely altruistic. The expectation is that as they get pulled up they will contribute to the greater benefit of all and hopefully the budgetary cross subsidies will lessen. If the UK has been paying more than its fair share of these cross subsidies it could find itself falling off the train just as it builds up cruising speed, and that could be a hard fall indeed.
Now it does seem that Ms May will signal tomorrow exit from the Customs Union and the Single Market. And really if control of immigration is a red line then there is no choice - Brexit means Brexit. If control of immigration was on the table along with continued membership of the single market the UK would have bitten Brussels hand off for that, budget injustice notwithstanding. It is really rather pathetic to hear arguments that leaving CU and SM is actually a chosen economic strategy to carve out much more lucrative markets at the other end of the globe.
The FX markets are buying none of that. Sterling continues to suffer. Nothing has actually changed yet regarding terms of trade, rather the depreciation is in anticipation of poor trade arrangements down the line. One shudders to thing what sterling will be when the new trade arrangements are actually in place.
And no, none of this is good for Ireland.