Gold is the standard currency in World of Warcraft. Your total gold is shown at the bottom right of your open backpack window. Gold is usually just referred to as money. WoW Gold Cap: The most money a single character can carry is 9,999,999 gold; the same limit applies to guild banks. Prior to Patch 7.0.3, the limit for both was 999,999 gold 99 silver 99 copper.
You can use gold to buy items from vendor or other players, transfer gold to other player characters, bid with gold for an item at the Auction House. Other uses are to buy additional bag slots at the bank or hunters can buy stable slots for their pets from a stable master. WoW gold is also traded between players in exchange for items and services
Players can obtain wow gold by completing quests, killing monsters, selling items to vendors, via trade or mail from other player characters, or by selling an item at the Auction House.
The auction house is the main way to make gold. No it does not provide gold quickly but it does provides a steady stream of gold every day. The auction house is very helpful if you want to save up for something, want to hit the gold cap, or simply have something incredibly valuable in your bags and want to sell it for as much as possible. Tips for selling in Auction House:
World Quests are the second easiest way to make gold. In Legion they still net a fair amount. They're fairly straightforward, just view the rewards that appeal to you and go complete it. Easy as pie. And if you have the time, extremely profitable. Just make sure to complete the Emissary quests for your rep. Even if you're maxed you can still get treasures. Obviously with BFA releasing this is pretty low priority but if you don't have it or are simply bored this is a good thing to do. Aim for the one's with the highest gold reward and I personally enjoy the puzzles as those are fairly simple and the Warden's bounty WQ are easy as well. They don't reward quite as much as they did in Legion, but if you want to it's not a bad way to get gold if you want to get the rep at the same time you can knock out two birds with one stone.
Professions have always been the best way to make gold. However it is a slightly more difficult part of gold making to execute with Legion's changes to professions. We have yet to see how Battle For Azeroth will affect this specific area of gold making. For example, in Legion herbs were very hard to get and VERY expensive as well as flasks, potions, and pretty much everything.
Just remember, in every main profession there is profit so try not to go bouncing around from profession to profession. Select your professions and don't get discouraged if they seem to be highly nerfed or extremely boring. Professions change every expansion, and frequently changes or made mid-expansion so don't fret, there's some gold everywhere.
When WoD introduced the WoW tokens it had become one of the main ways to make gold however not so much in Legion. WoW tokens can be purchased from the in-game store for $20 US. After receiving your WoW token you can go to the nearest AH and post it for the going price. I would suggest doing so when the prices are higher so as to get higher profit from selling them.
Instances are the way to go if you want to be 100% sure if how much gold you're getting and the time spent on it. With other areas of gold making there is always a risk that you won't sell your item and it'll just sit around in your bags or bank. Instances are fairly easy to run and they can be soloed up to WoD. Vanilla, BC, LK, Cata, and MoP raids/dungeons are all soloable. WoD is mostly doable, or so I've heard. Speaking as a Mage, soloing things is much harder. Especially because I play Fire. Legion depends on the class. Hunter/Pally/DK/Warlock+Blueberry can all probably solo them.
One of the best ways to get good equipment: Using the Looking for Group interface, or joining a good guild, and doing instances that are around your level. You'll learn valuable grouping skills, and the level of loot in an instance is typically much better than what you could find on your own. If possible, concentrate on instances with humanoid mobs, since selling the cloth that they drop is a good way to make money.
Repetitive daily quests are a legitimate method of generating significant cashflow. Though farming, crafting, and playing the Auction House each have better cash-per-hour potential at the level cap, dailies are still a staple of the working-class player's income. By planning out an efficient route, a player can complete his/her allotment of 25 daily quests within two hours, generating 100-500g per hour depending on level, professions, and farming activity. Many players have funded the purchase of their elite flying mounts solely through doing daily quests. The Burning Crusade expansion introduced daily quests, so a player's first large-scale exposure to daily quests will come at level 70. However, cooking and fishing dailies are available at level 5 in each capital city.
Another trick for higher level players is to do level 70 dailies during the Northrend level grind, and Northrend dailies during the Cataclysm levels. The quests are much easier at higher levels, but still award gold and EXP. If you have a hankering to get a Netherdrake, for instance, and you already have a fast flying mount (which is a pre-requisite for the drake), you will find your mid-70s an ideal time to go get that drake. Not only will the quests be a lot easier to do at level 75+, but the dailies will pay about 1200g as you level rep, and you'll get EXP along the way to boot (though usually less EXP per hour than you'd get for questing in Northrend.) Similarly, Northrend dailies award around 7g and 22,000 EXP each (13g 23s at the level cap), and are very easy to complete at level 83 in full Cataclysm gear. So if you're looking for a break from the grind of leveling, and want to kick back, spank some level 69 mobs and make some decent money along the way, doing lower level dailies can be a fun way to make some extra cash.
Farming in my opinion is the best way to make gold other than the AH and farming goes really, really well with playing the auction house. Farming is time consuming but normally you only farm for about 1/2 an hour or maybe 1 hour at most so it's not too long. Farming is easy because you can easily kill stuff up to Cata, and MoP mobs are pretty easily killed by a well geared level 110. Farming may seem odd but It's a great way to make money.
Trade chat is a good way to make gold. Especially if you're bored. The reason it's so big is because you can bargain. With the auction house the price listed is the price you get. In Trade Chat you bargain, trade, lower, and raise the price talking to the person. Honestly, I enjoy trade chat, though on smaller servers it doesn't work well.
An alt (secondary character) in a capital city is an effective way to not only cheaply increase your available bank space, but to be a simple savings and auctioneer account. This character can serve as your bank, an auctioneer, bag-space creator and a time saver. Get one. (There may or may not be Item Recovery issues with characters below level 10, in cases where one's account is hacked.) You can use these player characters doing Quest and transfer gold to the main character.
Any item with a grey name is considered vendor trash or poor quality. White items have some use such as tradeskills or as spell reagents, so you may want to check to see if they're worth more than the vendor price. Keep your eyes out for regular quality weapons, as even the worst of these tend to sell for several silver, or several gold at high level. Always check the tooltip for the vendor price before discarding anything. Also, white (or even grey) shoulder armor under level 20 sells regularly on the auction house, mainly because there is nothing better available at that level.
In general, if you have bag space, you should always pick up whatever vendor trash you can, particularly weapons, even if they are grey. Don't be too proud. This stuff may not sell for much, but vendor trash can easily pay for your repair bills, and as you level past your 60s that's not an inconsiderable amount of money.
Guilds are perhaps one the most effective ways of progressing your character, and in turn, making money.
Nothing says "loser" like begging. Everyone (and I mean everyone) hates beggars. Don't do it. If you don't care about etiquette, you can make a small amount of money this way, but it isn't as efficient as the regular (and respectable) ways of making money. You can never tell how an unknown player is going to react, but if you do any amount of begging you will probably earn some dislike.
This is a risky way to make money, and not recommended. Tell a player that if he beats you in a duel you will give him 10 gold, but if you beat him he has to give you 5 gold. This can be very effective if you are skilled in PvP and make the bet with a trustworthy person, or friends. It is a very risky strategy, as you may lose gold, or the other player won't cough up the money anyway. You will also get a bad reputation if you don't cough up the money in the case of defeat.