1/

Get a cup of coffee.

In this thread, I& #39;ll help you understand the basics of depreciation.
2/

Imagine that you& #39;re an electronics hobbyist.

You love tinkering with gadgets -- taking them apart, figuring out how they work, thinking of ways to improve them, etc.

You& #39;ve converted your garage into a lab of sorts, where you spend endless hours playing with your toys.
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From a young age, you& #39;ve had a fascination for batteries and battery technology.

You& #39;re amazed by the progress we& #39;ve made.

Today, we have batteries that can power a full-sized car for hundreds of miles on a single charge.

But you know there& #39;s still a long way to go!
4/

One night, working late in your garage, a sudden brainwave hits you.

Why not use positively charged electrons (positrons) to store energy?

Such a "positronic battery" could have 10x the energy density, and one-tenth the charging time, of today& #39;s most advanced batteries!
5/

So you spend the next few weeks building a prototype and testing it.

And it works!

You find that your positronic battery can indeed power a car for 3000 miles on a single charge. And what& #39;s more, charging the battery takes only 10 minutes.
6/

The next steps are clear.

You get a patent.

Then you start a battery company: Positronics, Inc.

You meet with potential investors. Once you demonstrate to them that your battery is capable of driving a car *uphill*, you have no trouble raising money.
7/

You raise $10B.

You use this money to build a factory. This takes about a year.

At the end of the year, you have a factory that& #39;s capable of manufacturing 3 million positronic batteries annually.

Finally, you& #39;re open for business -- ready to book your first battery order.
8/

So, between the time you started building the factory and the time you actually opened for business, one year has passed.

During this year, you had no revenue. But you spent $10B on the factory.

Does that mean your company lost $10B in its very first year?
9/

No.

The $10B spent on the factory was an *investment*, not an *expense*.

Sure, you spent $10B. But now, you have a factory that& #39;s worth $10B.

You didn& #39;t lose $10B. You just converted $10B of one asset (cash) into $10B of another asset (the factory).
10/

So the first year was actually a *wash*.

*Not* a $10B loss.

Whew! That& #39;s a relief.

OK. What happens in subsequent years?
11/

Let& #39;s say the factory has a useful life of 10 years.

That is, the factory will be able to manufacture 3 million batteries every year -- for the next 10 years.

After 10 years, everything in the factory will have worn out, and the whole factory will need to be rebuilt.
12/

From the moment we open for business, let& #39;s say demand is off the charts.

So we easily sell all the 3M batteries made by the factory each year.

We charge customers $2000 per battery.

So, our annual cash inflows are: (3M batteries) * ($2000 per battery) = $6B.
13/

Let& #39;s say each battery costs us $1000 to make and sell.

This includes the cost of raw materials, employee salaries, electricity, insurance, etc. -- all paid in cash.

Thus, we have annual cash outflows of: (3M batteries) * ($1000 per battery) = $3B.
14/

So, we have cash inflows of $6B and cash outflows of $3B each year.

Does that mean our annual profits are $6B - $3B = $3B?

Unfortunately, the answer is no.

That& #39;s because these cash inflows and outflows haven& #39;t factored in the $10B sunk into the factory at the beginning.
15/

That $10B was a cash *outflow* in the very first year. Cash went out and the factory came in.

*After* the first year, the $10B had *no* impact on cash flows.

But we didn& #39;t count the $10B as a loss in the first year. So we should somehow account for it in subsequent years.
16/

This is where depreciation comes in.

The key idea is this:

Our factory is initially worth $10B. But after 10 years, it& #39;s worth nothing (as its useful life is only 10 years).

So, we deduct $10B/(10 years) = $1B per year from the value of the factory.
17/

At the end of the Year 1, we open for business with a brand new factory worth $10B.

One year later, at the end of Year 2, our factory is worth only $9B.

At the end of Year 3, only $8B.

Finally, at the end of Year 11, the factory is worth $0.

That& #39;s depreciation.
18/

This $1B per year reduction in factory value has to be treated as a cost for our business.

But notice that there isn& #39;t a $1B *cash* outflow each year.

Depreciation is a "non-cash expense".
19/

One way to think about depreciation is:

Instead of treating the $10B cash outflow in the very first year as an expense, we& #39;re treating it as 10 separate expenses of $1B each -- over the next 10 years (the useful life of the factory).
20/

So, each year, for the next 10 years, we have:

$6B in cash inflows,
$3B in cash outflows, and
$1B in depreciation (non-cash) expenses.

Thus, our annual (pre-tax) profit is: $6B - $3B - $1B = $2B.
21/

Suppose our tax rate is 25%.

Then we pay 25% of $2B = $500M in taxes each year.

This leaves us with $2B - $500M = $1.5B in after tax profits.

This $1.5B is what we& #39;d report to shareholders as net income. So this $1.5B is called "reported earnings".
22/

But notice this:

Even though the company only reports *$1.5B* in earnings, it can comfortably pay out *$2.5B* in dividends for 10 straight years (Years 2 through 11).
23/

Why?

Because, in each of these years, the company has cash inflows of $6B and cash outflows of only $3.5B ($3B operating expenses + $500M taxes).

Dividends are paid from *cash flows*. And in cash flow land, depreciation doesn& #39;t count.
24/

Suppose the company went ahead and paid out these $2.5B in dividends each year.

Then, from the shareholders& #39; point of view, they put in $10B in Year 1, and got back $2.5B in each of Years 2 through 11.

That& #39;s an annualized return of about 21.4% on their invested capital.
25/

Key lesson: Return On Invested Capital depends on the timing of *cash flows* in and out of a business -- not on *reported earnings*. Non-cash accounting adjustments like depreciation can significantly widen the gap between cash flows and reported earnings.
26/

Lawmakers like to encourage businesses to invest in new projects -- like the $10B invested in our positronic battery factory.

Such investments spur economic activity and create jobs.

To incentivize businesses, lawmakers sometimes allow them to *accelerate* depreciation.
27/

Accelerated depreciation means a business deliberately *underestimates* the useful life of its investments.

This "pulls forward" depreciation expenses from the future, which reduces near term earnings and taxes, and hence improves returns on invested capital.
28/

Let& #39;s do an example.

Suppose we deliberately underestimate the useful life of our positronic battery factory. Even though the factory will actually last 10 years, we& #39;ll assume that it will last only 4 years.
29/

With this assumption, our depreciation expense is no longer $1B per year for 10 years.

Instead, it& #39;s $2.5B per year for 4 years, and $0 thereafter.

We& #39;ll pay $125M in taxes and report $375M in earnings for 4 years. And $750M taxes, $2.25B earnings thereafter.
30/

Now, our dividends (reported earnings plus depreciation) can be $2.875B for 4 years and $2.25B thereafter.

This represents a 23.3% return on invested capital -- up from 21.4% when we didn& #39;t accelerate depreciation.
31/

Note:

Over the full 10 year period, total dividends ($25B) and total taxes ($5B) remain the same whether we accelerate depreciation or not.

But with acceleration, dividends are *pulled forward* and taxes are *pushed back*, which improves return on invested capital.
32/

Of course, it& #39;s hard to put a precise figure on the useful life of an asset.

For example, who can say for certain how long a piece of battery making equipment will last?

So, most of the time, depreciation figures have to be "guesstimates". Managements have wide latitude.
33/

If management *overestimates* useful lives, we get the *opposite* of accelerated depreciation. This hurts shareholder returns.

But it pulls forward reported earnings. And many management teams are compensated on reported earnings. So there may be a perverse incentive here.
34/

Most companies are constantly depreciating some assets, while simultaneously investing capital into other assets.

And reported earnings and cash flows usually consolidate all these depreciation and capital expenses into a single line item.
35/

This can make it hard for investors to understand unit economics and thereby infer returns on invested capital.

Reading the "notes to the financial statements" of a company can help here. The notes usually contain information about depreciation schedules and such.
36/

As usual, I& #39;ll leave you with a few references.

In this podcast episode, @ChrisBloomstran beautifully explains the accelerated depreciation provisions in the Tax Cuts and Jobs Act, and how they impact capital allocation decisions at companies: https://moiglobal.com/twiii-s1-e13/ ">https://moiglobal.com/twiii-s1-...
37/

In this episode of Focused Compounding ( @FocusedCompound), Andrew and Geoff discuss in detail the various relationships between the income statement, the cash flow statement, depreciation, and capital expenses: https://www.youtube.com/watch?v=UHYFzrLJAe4">https://www.youtube.com/watch...
38/

This lecture by John Malone also drives home the importance of optimizing depreciation and other expenses to minimize taxes: https://www.youtube.com/watch?v=v5QfCLeloEg">https://www.youtube.com/watch...
39/

If you& #39;ve reached this point, you& #39;re clearly super positively charged -- a positron in a sea of electrons!

Thanks for reading. Enjoy your weekend!

/End
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