See all posts by Alan Oscroft Alan Oscroft | Monday, 9th March, 2020 Image source: Getty Images Forget the FTSE 100 crash, the Stocks & Shares ISA deadline is nearly here Enter Your Email Address I would like to receive emails from you about product information and offers from The Fool and its business partners. Each of these emails will provide a link to unsubscribe from future emails. More information about how The Fool collects, stores, and handles personal data is available in its Privacy Statement. Views expressed in this article are those of the writer and therefore may differ from the official recommendations we make in our subscription services such as Share Advisor, Hidden Winners and Pro. Here at The Motley Fool we believe that considering a diverse range of insights makes us better investors. Click here to claim your copy now — and we’ll tell you the name of this Top US Share… free of charge! “This Stock Could Be Like Buying Amazon in 1997” The world’s stock markets are in the grip of coronavirus panic, and the FTSE 100 crashed below 6,000 points on Monday morning. Is that any time to be thinking about our 2020 Stocks and Shares ISAs? Well yes, I think short-term market panics can help us focus on what really matters — our long-term investing plans.But shares? In the grip of a stock market crash, you might think a Stocks and Shares ISA is something to run away from. A safer Cash ISA, surely, is a better bet? But I think that’s dead wrong, and I’ll explain why.5G is here – and shares of this ‘sleeping giant’ could be a great way for you to potentially profit!According to one leading industry firm, the 5G boom could create a global industry worth US$12.3 TRILLION out of thin air…And if you click here we’ll show you something that could be key to unlocking 5G’s full potential…ISA limitsBut first, I reckon our investment plans are best served by making the best use we can every year of our ISA limit. At the moment, that limit stands at £20,000 per year — we can invest up to that much and not pay any tax on any of the profits we make. For the 2019-20 year, we have less than a month to use what we can of it.You might not be able to afford to invest anything close to that amount, so you don’t need to worry and can carry on with your 2020-21 allowance. But even if you don’t come close to the limit, I think maximising the amount we invest before the annual deadline can have one very beneficial effect. It commits whatever cash we have available leading up to April, and doesn’t leave it lying round heading into the summer with all the temptations that brings.Stocks and Shares ISACash ISA rates are around 1.3% at the moment, and that’s if you pick from among the best payers. That’s below inflation, and guarantees you’ll lose money in real terms. So the question of whether a Cash ISA is a good alternative to a Stocks and Shares ISA doesn’t even arise — a Cash ISA isn’t even a good alternative to no ISA at all.But if you’d piled your money into a Stocks and Shares ISA at the start of the year, you’d be down 20%. So how on earth is that a good move? Well, a this type of ISA is a long-term investment, so let’s look back a bit further.If you’d invested in one in the depths of the banking crisis slump, around the beginning of 2009, you’d have almost doubled your money today. Actually, when you add 4% and more per year from dividends, you’d have more than doubled it, tax-free. And that’s even after the coronavirus panic sell-off.Lessons from shares History is easily forgotten when markets are in the grip of the latest panic. But the real lesson is that times like this are times to buy, not times to sell.I’ve no idea what will happen in the coming few months. But I am confident that if you keep trickling your savings into a Stocks and Shares ISA and buying shares throughout the downturn, you’ll come out of it in a much better long-term financial state.And even if you’re nervous of buying shares right now, there’s no rush. 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